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NIH News in Health Features

Illustration of a high-fiber cereal, wild rice, whole-wheat pasta and nuts

Counting Carbs? Understanding Glycemic Index and Glycemic Load

The terms glycemic index and glycemic load are related to carbohydrates, a main type of nutrient in our diets. Learn more about complex carbs.

Cartoon of an older woman getting an eye exam

Your Aging Eyes: How You See as Times Goes By

You can’t prevent all age-related changes to your eyes. But you can take steps to protect your vision and reduce your risk for serious eye disease in the future.

Illustration of a sleeping woman thinking about music, math and friends

Sleep On It: How Snoozing Strengthens Memories

When you learn something new, the best way to remember it is to sleep on it. That’s because sleep helps strengthen the memories you’ve formed throughout the day. Scientists are learning more about the complex links between sleep and memory.

Recommended NIH Resources

Eye Health Information
(National Eye Institute)
Eye health information and resources for the public and professionals.

Diagram of the Eye
(National Eye Institute)
Diagram of the eye, showing the location of the iris, pupil, cornea, lens, vitreous, macula, sclera, optic nerve, and retina.

Diabetic Eye Disease
(National Eye Institute)
Information on diabetic eye disease, including facts about diabetic retinopathy.

Eye Disease Simulations
(National Eye Institute)
A scene as it might be viewed by someone with normal vision, and as viewed by someone with age-related macular degeneration, cataract, diabetic retinopathy, glaucoma, myopia, and retinitis pigmentosa.

Tips for Talking to Your Doctor
(National Eye Institute)
You and your doctor work in partnership to achieve your best possible level of health. An important part of this relationship is good communication. Here is a list of questions you can ask your doctor to get your discussion started.


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